History of Services 41 - 50

Service 41 (1971 - 1991)

Operator	Year	Date	Service changes
ABC	1971	11 April	Introduced between Telok Kurau Rd Ter and Redhill Cl Ter under 1971 Bus Reorganisation.
	1973	1 July	Extended to Chai Chee Ter.
	1974	3 February	Amended to ply Still Rd, skipping Telok Kurau Rd under 1974 Bus Rationalisation.
	1975	2 February	Amended to ply new slip road from Tiong Bahru Rd to Outram Rd with the conversion of Seng Poh Rd to one-way traffic.
		2 March	Amended to ply Sims Ave and Lor 1 Geylang towards Chai Chee Ter with the conversion of Geylang Rd to one-way traffic.
	1976	18 April	Amended to ply Bedok Sth Rd, Bedok Sth Ave 1, Marine Parade Rd and Amber Rd, skipping Changi Rd, Still Rd and East Coast Rd.
		30 December	Amended to ply Paya Lebar Rd, Sims Ave and the extended Tg Katong Rd towards Chai Chee Ter.
	1985	7 April	Amended to Bedok Int.
		15 September	Integrated with Service 44 and extended to Bt Merah Int.
	1987	6 April	Skips removed bus stop before College Rd along Outram Rd.
		27 September	Amended to ply the extended Eu Tong Sen St towards Bedok Int to facilitate the first stage of road expansion along New Bridge Rd.
		1 November	Amended to ply Eu Tong Sen St to facilitate the second stage of road expansion along New Bridge Rd.
	1988	20 March	Amended to ply Upp Cross St and New Bridge Rd, skipping Neil Rd.
	1990	22 July	Serves additional bus stop outside Ellenborough Mkt along Eu Tong Sen St.
	1991	7 April	Integrated with Service 197 and discontinued under TransitLink Network Integration Exercise Phase 3.

Service 41 (since 2014)

Operator	Year	Date	Service changes
Template:SBS Transit	2014	14 December	Introduced between Jurong East Temp Int and Jln Anak Bt (Loop) under LTA's Bus Service Enhancement Programme (BSEP), operating between 0545 hrs and 2345 hrs daily.
	2015	30 March	Designated wheelchair-accessible bus service (WAB).
(Current)	2016	26 June	Operations transferred to Tower Transit Singapore.
	2020	6 December	Amended to relocated Jurong East Temp Int and serve new bus stop before Jurong East Stn along Jurong Gateway Rd.

Service 41A (1971 - 1974)

Operator	Year	Date	Service changes
ABC	1971	11 April	Introduced between Joo Chiat Pl Ter and Redhill Cl Ter under 1971 Bus Reorganisation.
	1973	1 July	Extended to Chai Chee Ter.
	1974	3 February	Re-numbered Service 44 under 1974 Bus Rationalisation.

Service 42 (1971 - 1978)

Operator	Year	Date	Service changes
STC	1971	11 April	Introduced between Telok Kurau Rd Ter and Intl Rd Ter under 1971 Bus Reorganisation.
ABS		6 December	Operations transferred to ABS.
	1972	24 December	Extended to relocated Intl Rd Ter (near Fourth Lok Yang Rd).
	1973	1 July	Extended to Chai Chee Ter.
	1974	8 December	Amended to ply the extended Robinson Rd, skipping Market St.
	1976	15 February	Serves new staggered bus stop outside Overseas Union Finance along Robinson Rd.
		30 December	Amended to ply Paya Lebar Rd, Sims Ave and the extended Tg Katong Rd towards Chai Chee Ter.
	1978	1 June	Discontinued.

Service 42 (since 1997)

Operator	Year	Date	Service changes
	1997	5 October	Re-numbered from Service M2 as a service between Jln Kembangan (Kembangan Stn) and Fidelio St (Loop).
Template:SBS Transit (Current)	2014	29 September	Designated wheelchair-accessible bus service (WAB).
	2023	27 November	Last bus extended to 2400 hrs daily.

Service 43 (1971 - 1975)

Operator	Year	Date	Service changes
STC	1971	11 April	Introduced between Telok Kurau Rd Ter and Prince Edward Ter under 1971 Bus Reorganisation.
ABS		6 December	Operations transferred to ABS.
	1972	24 December	Extended to Benoi Rd Ter.
			Amended to ply Corporation Rd, Yung Ho Rd, Corporation Dr and Corporation Rd during off peak hours daily.
	1973	1 July	Extended to Chai Chee Ter.
	1974	3 February	Shortened to start from Prince Edward Ter, shortened to loop at Kallang Pk and converted to peak hour service on weekdays and Saturdays only under 1974 Bus Rationalisation.
		8 December	Amended to ply the extended Robinson Rd, skipping Market St.
	1975	8 June	Discontinued.

Service 43 (since 2005)

Operator	Year	Date	Service changes
Template:SBS Transit	2005	23 October	Introduced between Punggol Temp Int and Upp East Coast Ter, operating between 0545 hrs and 2345 hrs from Punggol Temp Int and Upp East Coast Ter daily.
	2006	TBC	Serves additional bus stop outside Victoria Sch along Marine Parade Rd.
	2009	23 August	Amended to ply the reinstated Paya Lebar Rd, skipping Eunos Ave 5 and Eunos Rd 8.
	2010	18 October	Designated wheelchair-accessible bus service (WAB).
	2011	17 December	Serves new pair of bus stops outside Soo Teck Stn along Punggol Way.
	2013	22 September	Serves new bus stop outside Wisma AUPE along Upp Paya Lebar Rd.
	2014	7 December	Serves new pair of bus stops before Blk 264 and outside Blk 264A along Punggol Ctrl.
	2015	30 August	Serves new pair of bus stops outside Twin Waterfalls and after TPE along Punggol Way.
(Current)	2016	4 September	Operations transferred to Go-Ahead Singapore.
			First bus from Upp East Coast Ter brought forward to 0525 hrs on weekdays.
		13 November	Serves new pair of bus stops opposite Blk 293D and outside Blk 286B along Sengkang East Rd.
	2017	26 November	Serves additional bus stop outside Punggol Stn/Int along Punggol Ctrl.

Short Trip 43A (2012 - 2014)

Operator	Year	Date	Service changes
Template:SBS Transit	2012	23 July	Introduced from Buangkok Green (Blk 565) to Serangoon Ctrl (Serangoon Stn) during morning peak hours on weekdays. Wheelchair-accessible at launch.
	2014	16 November	Discontinued with the introduction of Service 43M.

Service 43M

Operator	Year	Date	Service changes
Template:SBS Transit	2014	16 November	Introduced between Punggol Temp Int and Serangoon Ctrl (Loop) under the LTA's Bus Service Enhancement Programme (BSEP). Wheelchair-accessible at launch.
		7 December	Serves new pair of bus stops before Blk 264 and outside Blk 264A along Punggol Ctrl.
	2015	30 August	Serves new pair of bus stops outside Twin Waterfalls and after TPE along Punggol Way.
	2016	24 January	Serves additional bus stop outside Serangoon Stadium along Boundary Rd.
(Current)		4 September	Operations transferred to Go-Ahead Singapore.
		13 November	Serves new pair of bus stops opposite Blk 293D and outside Blk 286B along Sengkang East Rd.
	2017	26 November	Serves additional bus stop outside Punggol Stn/Int along Punggol Ctrl.

Service 44 (April - May 1971)

Operator	Year	Date	Service changes
ABC	1971	11 April	Introduced between Telok Kurau Rd Ter and Delta Circus Ter under 1971 Bus Reorganisation.
		2 May	Discontinued.

Service 44 (1974 - 1985)

Operator	Year	Date	Service changes
	1974	3 February	Re-numbered from Service 41A as a service between Chai Chee Ter and Redhill Cl Ter.
	1975	2 February	Amended to ply new slip road from Tiong Bahru Rd to Outram Rd with the conversion of Seng Poh Rd to one-way traffic.
		2 March	Amended to ply Sims Ave and Lor 1 Geylang towards Chai Chee Ter with the conversion of Geylang Rd to one-way traffic.
	1979	14 October	Amended to ply Still Rd and Sims Ave East towards Chai Chee Ter with the conversion of Changi Rd to one-way traffic, skipping Telok Kurau Rd.
		14 November	Amended to ply Telok Kurau Rd, skipping Still Rd.
	1981	15 November	Integrated with Service 63 and extended to Bt Merah Int.
	1985	15 September	Integrated with Service 33 and discontinued with the closure of Chai Chee Ter.

Service 45 (1971 - 1984)

Operator	Year	Date	Service changes
ABS	1971	11 April	Introduced between Kallang Pk Ter and Haig Rd (Loop) under 1971 Bus Reorganisation.
		9 May	Extended to loop at Kreta Ayer Rd.
	1974	3 February	Amended to start from Chai Chee Ter and shortened to loop at Tg Rhu Rd under 1974 Bus Rationalisation.
	1979	14 October	Amended to ply Still Rd and Sims Ave East towards Chai Chee Ter with the conversion of Changi Rd to one-way traffic.
	1984	27 May	Discontinued.

Service 45 (since 2006)

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2006	26 December	Introduced between Upp East Coast Ter and Ang Mo Kio Depot, operating between 0600 hrs and 2330 hrs from Upp East Coast Ter and Ang Mo Kio Depot daily.
	2010	13 February	Serves new pair of bus stops outside and opposite Blk 220 CP along Bedok Nth Ave 3.
		28 June	Designated wheelchair-accessible bus service (WAB).

Short Trip 45A

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2010	28 June	Introduced from Lor Ah Soo (Opp Blk 115) to Upp Serangoon Rd (Serangoon Stn) during morning peak hours on weekdays. Wheelchair-accessible at launch.

Service 46 (1971 - 1975)

Operator	Year	Date	Service changes
ABS	1971	11 April	Introduced between Tg Rhu Ter and Kreta Ayer Rd (Loop) under 1971 Bus Reorganisation.
	1974	8 December	Amended to ply the extended Robinson Rd, skipping Market St.
	1975	22 June	Discontinued.

Service 46 (1978 - 1981)

Operator	Year	Date	Service changes
	1978	1 April	Introduced between Geylang Fringe Car Pk and Stadium Wk (Loop).
	1981	11 November	Discontinued.

Service 46 (since 2016)

Operator	Route	Year	Date	Service changes
Template:SBS Transit (Current)	Upp East Coast ↔ Tampines (2016 - 2022)	2016	12 June	Introduced between Upp East Coast Ter and Tampines Int under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0600 hrs and 2330 hrs daily from Upp East Coast Ter and between 0600 hrs and 2345 hrs daily from Tampines Int.
		2017	21 August	Designated wheelchair-accessible bus service (WAB).
			24 December	Amended to ply Tampines Ctrl 8 and Tampines Concourse towards Tampines Int.
	Upp East Coast ↔ Pasir Ris (since 2022)	2022	30 October	Extended to Pasir Ris Int.

Service 47

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2015	20 December	Introduced between Changi Business Pk Ter and Amber Rd (Loop) under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0600 hrs and 2345 hrs daily. Wheelchair-accessible at launch.

Service 48

Operator	Route	Year	Date	Service changes
Template:SBS Transit (Current)	Upp East Coast ↔ Buona Vista (2005 - 2011)	2005	3 July	Introduced between Upp East Coast Ter and Buona Vista Ter, operating between 0545 hrs and 2345 hrs from Upp East Coast Ter daily, and between 0600 hrs and 2400 hrs from Buona Vista Ter daily.
			2 October	Serves new bus stop outside New 7th Storey Hotel along Rochor Rd and new bus stop near Bali Lane along Ophir Rd.
		2006	TBC	Serves additional bus stop outside Victoria Sch along Marine Parade Rd.
		2010	28 June	Designated wheelchair-accessible bus service (WAB).
		2011	4 September	Serves new bus stop outside Botanic Gdns Stn along Bt Timah Rd.
	Bedok North Depot ↔ Buona Vista (since 2011)		11 December	Extended to Bedok Nth Depot.
		2013	28 July	Serves new pair of bus stops outside One Amber and outside Tg Katong Rd Sth Playground along Tg Katong Rd Sth.
		2018	28 October	Skips bus stop before Winstedt Rd along Bt Timah Rd with the relocation of the bus stop outside Newton FC.
		2019	24 February	Serves reinstated bus stop before Winstedt Rd along Bt Timah Rd with the reversion in the relocation of the bus stop outside Newton FC.

Service 49

Operator	Route	Year	Date	Service changes
Template:SBS Transit	Taman Jurong ↺ Jurong West St 42 (2013 - 2015)	2013	14 December	Introduced between Taman Jurong Ter and Jurong West St 42 (Loop) under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0600 hrs and 2330 hrs daily.
		2014	23 March	Designated wheelchair-accessible bus service (WAB).
			9 November	Amended to ply Corporation Dr, Yung Ho Rd and Yuan Ching Rd in both directions.
	Jurong East ↺ Jurong West St 42 (since 2015)	2015	22 November	Extended to Jurong East Temp Int and amended to ply Corporation Dr and Yung Kuang Rd.
(Current)		2016	26 June	Operations transferred to Tower Transit Singapore.
		2020	6 December	Amended to relocated Jurong East Temp Int.
		2022	27 November	Serves a pair of additional bus stops before Jurong Port Rd and after Corporation Pl along Jln Ahmad Ibrahim.

Service 50 (1971 - 1991)

Operator	Year	Date	Service changes
ABS	1971	11 April	Introduced between Kaki Bt Ter and Prince Edward Ter under 1971 Bus Reorganisation.
		9 May	Extended to Lengkok Bahru Ter.
	1974	3 February	Amended to ply Sims Ave and Paya Lebar Rd under 1974 Bus Rationalisation, skipping Geylang Rd and Changi Rd.
		8 December	Amended to skip Market St.
	1975	2 February	Amended to ply new slip road from Tiong Bahru Rd to Outram Rd with the conversion of Seng Poh Rd to one-way traffic.
		2 March	Amended to ply Geylang Rd towards Lengkok Bahru Ter with the conversion of Sims Ave to one-way traffic.
	1976	15 February	Serves new staggered bus stop between Bank of India and Hong Leong Holdings along Robinson Rd.
	1978	15 January	Amended to ply Jln Sultan, skipping Sumbawa Rd.
	1979	11 February	Amended to ply the extended Shenton Way towards Lengkok Bahru Ter, skipping Parsi Rd and Anson Rd.
		23 December	Amended to Bt Merah Ctrl Ter.
	1980	20 January	Amended to ply Spottiswoode Pk Rd with the partial conversion of Cantonment Rd to one-way traffic.
		28 September	Amended to Bt Merah Int.
	1981	11 October	Serves new staggered bus stop outside Tunas Bldg along Anson Rd, skipping the bus stop outside Intl Plaza.
	1984	17 June	Amended to Jln Eunos Ter.
	1987	22 March	Amended to Eunos Ter.
		6 April	Skips removed bus stop before College Rd along Outram Rd.
	1989	10 December	Amended to Eunos Int.
	1991	6 January	Discontinued under TransitLink Network Integration Exercise Phase 1.

Service 50 (since 2012)

Operator	Year	Date	Service changes
Template:SBS Transit (Current)	2012	16 December	Introduced between Bishan Int and Punggol Temp Int under the LTA's Bus Service Enhancement Programme (BSEP), operating between 0545 hrs and 2345 hrs on weekdays & Saturdays / between 0600 hrs and 2345 hrs on Sundays & Public Holidays from Bishan Int, and between 0530 hrs and 2345 hrs on weekdays & Saturdays / between 0545 hrs and 2345 hrs on Sundays & Public Holidays from Punggol Temp Int.
	2013	31 March	Designated wheelchair-accessible bus service (WAB).
		13 October	Amended to ply Sengkang West Ave and Sengkang West Rd with the partial closure of Jln Kayu.
	2015	11 January	Serves additional bus stop outside Blk 988B along Yio Chu Kang Rd.
	2016	25 September	Serves new pair of bus stops outside Waterwoods and after Punggol Field along Punggol East.

Service 50A (1971 - 1974)

Operator	Year	Date	Service changes
ABS	1971	11 April	Introduced between Kaki Bt Ter and Stamford Rd (Loop) under 1971 Bus Reorganisation.
	1974	3 February	Extended to Alexandra Rd (Alexandra Hosp) Ter and re-numbered Service 53 under 1974 Bus Rationalisation.